Hydraulic machine for clamping plates in the manufacture of springs.



No. 819,872. PATENTED MAY 8, 1906. W. EVANS.

HYDRAULIGMAGHINB FOR CLAMPING PLATES IN THE MANUFACTURE OF SPRINGS.

APPLICATION FILED 0013.4,1905.

3 S HEBTS-SHEBT l.

No. 819,872. PATENTED MAY 8, 1906. W. EVANS. HYDRAULIC MACHINE FOR CLAMPING PLATES IN THE MANUFACTURE OF SPRINGS.

APPLICATION FILED 0014,1905.

3 SHEETS-SHEET 2.

No. 819,872. PATBNTED MAY sfilaos'. W. EVANS.

HYDRAULIC MACHINE FOR CLAMPING PLATES IN THE MANUFACTURE OF SPRINGS. APPLICATION FILED 0014,1905:

a SHEETS-ISHBET s UNITED STATES PATENT OFFICE.

WILLIAM EVANS, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR '.l() WILLIAM EVANS, ROBERT EVANS, AND JOHN ll. EVANS, 0F PHILA- DELPHIA, PENNSYLVANIA, A FIRM.

HYDRAULIC MACHINE FOR CLAMPING PLATES IN THE MANUFACTURE OF SPRINGS.

No. 819,872. Specification of Letters Patent. Patentea may 8, 1906.

Application filed October 4. 1905. Serial No. 281,240.

To all whom it may concern:

Be it known that I, WILLIAM EvANs, a citizen of the United States, residing at the cit of Philadel hia, in the 'county of Philadephia and late of Pennsylvania, have invented certain new and useful Improvements in H draulie Machines for Clamping Plates in the Manufacture of Springs, of which the following is a specification.

M invention has relation to a hydraulic mac line for clamping plates in the manufacture of springs, and m such connection it relates more particularly to the constructive arrangement of such a machine to so clamp and hold assembled plates as to permit of ready application of bands thereto.

The principal objects of my invention are, first, to .provide a machine with means actuated by hydraulic-pressure to force, in the manufacture of sprin the plates properly shaped and assembled against each other to securely clamp and hold the same together; second, to provide the machine with movable means adapted to support the hydraulic means and the clamped spring held by the same to permit of the moving of the clamped spring-p ates into a position so that a band can be readily applied thereto; third, to provide a trunnion with movable means provided with a chamber to form a passa e-way for water and a flexible joint, for fees-pipes, engagin the same to permit of swing ng the move le means into various angular positions and the feeding of the water under pressure into the hydraulic means, irrespective of the position occupied by the swin ing means, and, fourth to provide a mac he with a combined locking and releasing mechanism, adapted to lock the swinging frame in various angular positions in the same.

The nature and scope of my invention will be more fully understood from the following description, taken in connection with the accompanying drawings, forming part hereof, in which- Figure 1 is a view illustrating in side elevation the hydraulic spring-plate-clam ing machine, a swinging frame supported by trunnions engaging the standard of the machine, a hydraulic ram carried by the frame, a hol low trunnion adapted to form a connection between feed-pipes conducting water to and from the hydraulic cylinder actuating the ram, spring-controlled means to automatically return the ram to its normal inoperative position. and locking means adapted to hold the frame in various angular positions in the machine, all embodying the main features of my said invention. Fig. 2 is a top or lan'view of the machine shown in Fig. 1 and illustrating in dotted lines, a spring formed of plates assembled in a position so as to be clam ed by the hydraulic ram. Fig. 3 is a view ill ustrating in elevation the right-hand end of the machine shown in Fig. 1; and Fig. 4 is a cross-sectional view of the machine, illustrating in full and dotted lines the various positions of the swingim frame in the machine and the manner of holding the clamped spring-plates in a vertical position for the attachment of a band thereto.

Referrin to the drawings, Ar'epresents the standard oi the machine, consisting of frames a and a, united with each other by a plate a.

described. In the frames 0. and a are arranged bearings a and a, adapted to receive gral with a frame which by extending overbalanced and thus normally held in a substantially vertical position in the standard A, as shown in Fi s. 1 and 4. The frame I), pivotally supported in the standard A by the trunnions and b, can be swung therein,

of plates B, properly shaped into a spring B. The assembled spring -B by resting on these tables is placed with one side against a projection b, preferably formed integral with the swinging frame I), as shown in Figs. 1 and 2. Opposite the projection b", forming a jaw and sliding on the table I), is arranged forming a table for a purpose to be presently trunnions b and b preferably formed into-'- downward beyond the trunnions b and b is serve to receive and permit of the assembling to assume various angular positions with re which by means of bolts is rigidly secured the swinging frame I), as shown in Fig. l.

a h draulic rain d, preferably formed integral witTi a piston d to In addition to a gland d, rendering the piston d water-tight in the cylinder d", the same provided with a flange (1, to the extension d of which is secured a rod 0, serving as a handle, which when engaged by the operator permits of a readyturning of the swinging frame b on its trunnions b and b in. the standard A, for which purpose, however, the same must first be unlocked therefrom.

One mode of locking the swinging frame I) to the standard A and holding the same in vertical and horizontal positions therein is as follows: As shown in Fig. 1, to the under side of the swinging frame I) is secured a rod 7', which by means of a spring f is normally held in engagement with an opening f", arranged in a plate f secured to the frame a. The rod f is connected with a bell-crank leverf pivotally secured in the pointf" to the swinging frame I), and by means of a linkf is connected with the lower arm of a bellcrank leverf, pivotal] y secured in the point f to the handle 0, as shown'in Fig. 3. When the upper arm of the leverf is swung towardthe handle 2 and held in alinement with the same, the movement imparted to the lever f by means of the bell-crank leverf and link f is transmitted to the rod f, which is withdrawn from the openingf in the plate f The swinging frame I) thus unlocked from the plate f 2 may now be swung into a horizontal position, as shown by dotted lines in Fig. 4, and locked in this position by permitting the rod f, through the release of the lever f to engage the opening g, arranged in a plate {1, secured to the frame a, as shown in Fig. 4. Before, however, the swinging frame I) and the'h draulic cylinder-ram and accessories carried by the same are swung into this horizontal osition the hydraulic ram (1, actuated by tiii piston (l, must first be brought into engagement with the assembled spring-plates B. The mm d is held in its normally inoperative position preferably by rods Ii, carried by a yoke It, secured to an.

extension 1 of the piston d projecting beyond the rear end of the cylinder (1. The rods h, are guided in ears (1, formed integral with the flange (1 of the cylinder d, and are secured to extensions (1", formed integral with the ram d. Springs If, arranged on the rods h and bearing against the ears (1 and yoke h, force the rain (1 backward into its inoperative position. (Shown in Figs. 1 and 2.) As shown in Fig. 1, the trunnion I) of the swinging frame I) is provided with a chamber 11, into which projects one end of a pipe Ir, held in engagement with. the trunnion I) by a stuffing-box 7c and a gland The chamber '2, by means of a duct 01, forming the continuation thereof, communicates with a pipe 1,

of a hydraulic cylinderd,

which at one end is secured to the swinging frame I) and at its other end to the hydraulic cylinder d*. The pipe is, terminating in the chamber i of the trunnion?) and forming the continuation of ipe l, is connected to a valve m of suitab e construction actuated by a handle m, which communicates with a source of water-supply held under pressure. (Not shown.) The ipe k by terminating in the trunnion If of the swinging frame 1) permits the same to freely turn in the stand-' ard A without in the least interfering with the proper conduct of the water into and from the hydraulic cylinder d As soon as water under )ressure is permitted to enter the cylinder (i the rain (I, actuated by the pistond, is shifted forward until the same reaches the spring B and forces the same against the jaw bof the frame I). The lates B, forming the spring B, are thus orced against each other and are then immovably' clamped in position between the jaw I) and ram (1. The movable frame bis now unlocked by the actuation of the lever f 7 and by means size, is now slip ed over the upper end of the spring, after w iich it will drop by gravity and with slight assistance, if necessary, be brought to proper position by abutting against the jaw b and ram (1. By the actuation of the valve m and the exit of the water 7 may be placed beneath the s )ring B. ()n the other hand, the spring may be returned to a horizontal position by first re turning the swinging frame I) to-its normal vertical position, in which the same, when released by the jaw b and ram (I, will again be placed on the tables a? and c of the standard A.

Having thus described the nature and objects of my invention, what I claim as new, and desire to,secure by Letters Patent, is

1. In a machine of the character described, a standard, movable means arranged in said standard and adapted to support a clamping means, hydraulic means carried by said movable means, said clamping means adapted when actuated by said hydraulic means to force spring-plates against each other so as to clamp the same. i

2. In a machine of the character described,

reg

a standard, means arranged in said standard having a projection, h draulic means carried by sa1d means, said ydraulic means when actuated adapted to force spring plates against said projection and in conjunction with said projection to then clamp the same, and means to permit said hydraulic means and the clamped spring to assume certain angular ositions in said standard.

3. a machine of the character described,

.a standard, means movably arranged in said standard having a projection, hydraulic means carried by said movable means, said hydraulic means when actuated adapted to force spring-plates against said a rojection and in con unction with said pro ection to then clamp the same, means adapted to permit said movable means and by the same, said hydraulic means and the clamped spring to assume various angular positions in sai standard, and means adapted to lock said swinging frame in positions given.

4Q In a machine of the character described, a standard, a swinging frame arranged in said standard having a' projection, a hydraulic ram carried by said swinging frame, said hydraulic ram adapted when actuated to force spring-plates against each other and said projection and in conjunction therewith to clamp and hold the same in osition on said stan ard, and means adapte to return said ram to its normally inoperative position.

5. In a machine of the character described,

a standard, a swinging frame arran ed in said standard having a projection, a ydraulic ram carried by said swinging frame, said hydraulic ram adapted when actuated to force the spring-plates a projection of said ame and in conjunction therewith to clamp and hold the same in position on said standard, and means for turnin and clampin said swinging frame in said standard in t e position given.

6. In a machine of the character described, a standard, a frame having a projection and trunnions enga ing said standard, ahydraulic cylinder carrie by said frame, a piston havin a head sliding on said frame, said 0 lin er, iston and head forming a hydrau ic ram a apted when actuated to force springplates against each other-and the projection of said frame and in conjunction therewith to clam and hold the same in position on said stan ard, and means ada ted to automatically return said head an piston to its normally inoperative position.

7. In a machine of the character described a standard, a frame having a projection an trunnions engaging said standard, one of said trunnions having a chamber, inder carried by said frame, a piston having a head slidable on said cylinder, said 0 linder, piston and head forming a hydrau '0 ram adapted when actuated to force spring-plates against each other and said projection and in ainst each other and the a hydraulic cylconjunction therewith to clamp and hold the same in position on said standard, and pi es adapted respectively, to connect said c inder with said chambered trunnion an the same with a source of water-supply under pressure.

' 8. In a machine of the character described,

a standard, a frame havinga projection and trunnions engaging said standard,4one of said trunnions having a chamber, a hydraulic cylinder carried by said frame, a piston having a head slidable on said frame, said c linder, piston and head forming a hydrau ic ram adapted when actuated to force the springplates against each other and said projection and in conjunction therewith to clamp and hold the same in position, and pipes adapted to connect res ectively said cylinder with said chambere trunnion and the same with a source of water-supply under pressure, and said chambered trunnion arranged to permit of-the passa e of water through said plpes irrespective 0 their position to each other.

9. In a machine of the character described, a standard, a frame having a projection and trunnions engaging said standard, one of said trunnions having a chamber forming a passage-way, a hy raulic cylinder carried by said frame, a piston having a head slidable on said frame, saidcylinder, piston and head forming a hydraulic ram adapted when actuated to force spring-plates against each other and said projection and in conjunction therewith to clamp and hold the same in position on said standard, pipes adapted to connect respectively said cylinder with said chambered trunnion and with a source of water-supply under pressure and to conduct water into and from said cylinder b the passage of the same through said 0 ambered trunnion irrespective of the position of said frame in said standard, a spring-controlled rod connected with said frame and'adapted to lock the same to said standard, and means adapted to permit of the disengagement of the rod therefrom.

- 10. In a machine of the character described, a standard, having a table, a frame having a pro'ection and trunnions engaging saidstandar one of said trunnions having a chamber formin a passage-way, a bracket carried by said rame adapted to su port a plate forming an auxiliary table, sai tables adapted to support and permit of the assembling of spring-plates thereon, a hydraulic cylinder carried y said frame, a piston having a head slidable on said frame, said cylinder, piston and head forming a hydraulic ram adapted when actuated to force the spring-plates against each other and said pro ection and mconjunction therewith to clam and hold the same in position on said stan ard, lpipes adapted to connect respectively sai cylinder with said chambered trunnion and with a source of water-supply IIO under pressure and to conduct wntor into In testimony whereof I have hereunto set and from said cylinder by tho passage of the my signature in the presence of two subscrib- '10 szuno through said chmnhvred trunnion irrning witnesses.

spvctive oi the position of snid frame in said stnndn-i'd, and n spring-cm)trolled rod 00nnm-t-vd with said i'mnw adapted to lock the Witnesses: same to said standard, and means to permit v WILHELM VOGT,

WILLIAM EVANS.

nl' thodisengagement of the rod therefrom. -TIIOMAS M. SMITH. 

